CA2057657A1 - Power feeding system for an optical transmission system - Google Patents

Power feeding system for an optical transmission system

Info

Publication number
CA2057657A1
CA2057657A1 CA2057657A CA2057657A CA2057657A1 CA 2057657 A1 CA2057657 A1 CA 2057657A1 CA 2057657 A CA2057657 A CA 2057657A CA 2057657 A CA2057657 A CA 2057657A CA 2057657 A1 CA2057657 A1 CA 2057657A1
Authority
CA
Canada
Prior art keywords
power feeding
cable
optical
optical transmission
transmission system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2057657A
Other languages
French (fr)
Other versions
CA2057657C (en
Inventor
Toshiyuki Tanoue
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2057657A1 publication Critical patent/CA2057657A1/en
Application granted granted Critical
Publication of CA2057657C publication Critical patent/CA2057657C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/29—Repeaters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/80—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water
    • H04B10/806—Arrangements for feeding power
    • H04B10/808—Electrical power feeding of an optical transmission system

Abstract

In a power feeding system for an optical transmission system used as an optical submarine cable system formed by at least two cable landing stations, a power feeding cable provided between the cable landing stations, and a plurality of optical repeaters each provided at predetermined intervals on the optical submarine cable; the power feeding system includes: at least one constant voltage source provided for one end or both ends of the power feeding cable to apply an electric potential between the power feeding cable and the ground, and the constant voltage source provided in the cable landing station; and each optical repeater connected between the power feeding cable and the ground to utilize the electric potential as a supply voltage for the optical repeater itself.
CA002057657A 1990-12-18 1991-12-13 Power feeding system for an optical transmission system Expired - Fee Related CA2057657C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP02-411546 1990-12-18
JP2411546A JPH04217123A (en) 1990-12-18 1990-12-18 Feeding system for optical transmission system

Publications (2)

Publication Number Publication Date
CA2057657A1 true CA2057657A1 (en) 1992-06-19
CA2057657C CA2057657C (en) 1999-01-05

Family

ID=18520535

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002057657A Expired - Fee Related CA2057657C (en) 1990-12-18 1991-12-13 Power feeding system for an optical transmission system

Country Status (5)

Country Link
US (1) US5719693A (en)
EP (1) EP0491378B1 (en)
JP (1) JPH04217123A (en)
CA (1) CA2057657C (en)
DE (1) DE69130476D1 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0787013A (en) * 1993-09-10 1995-03-31 Fujitsu Ltd Optical submarine system
US6025949A (en) * 1997-06-10 2000-02-15 Tyco Submarine Systems Ltd. Line monitoring of an optical transmission system using pilot signals
JP4204693B2 (en) * 1999-03-31 2009-01-07 三菱電機株式会社 Optical amplifier
US20020080447A1 (en) * 2000-12-21 2002-06-27 Julian Fells Transmission system with enhanced repeaters
JP2002369366A (en) * 2001-06-04 2002-12-20 Mitsubishi Cable Ind Ltd Optical termination box
GB0115372D0 (en) * 2001-06-22 2001-08-15 Cit Alcatel Power feeding for an optical transmission system
GB0121811D0 (en) * 2001-09-10 2001-10-31 Cit Alcatel Branching unit for an optical transmission system
FR2834399A1 (en) * 2002-01-03 2003-07-04 Cit Alcatel System for operating telecommunications/data transmission has a fiber optic cable with an electric wire between two stations separated by an ocean with repeaters to boost optical signals.
GB0208485D0 (en) * 2002-04-12 2002-05-22 Cit Alcatel Power feed
US20050232634A1 (en) * 2004-03-29 2005-10-20 Evangelides Stephen G Jr Undersea optical transmission system employing low power consumption optical amplifiers
EP2393222B1 (en) * 2010-06-03 2014-10-01 Alcatel Lucent System and method for transporting electric power and providing optical fiber communications under sea water
EP2393220B1 (en) * 2010-06-03 2015-07-08 Alcatel Lucent Undersea optical and electrical distribution apparatus
EP2393221B1 (en) * 2010-06-03 2015-07-22 Alcatel Lucent Undersea power distribution system
US9559776B2 (en) * 2015-01-21 2017-01-31 Google Inc. Locally powered optical communication network
US10374725B2 (en) * 2017-10-04 2019-08-06 Subcom, Llc Power delivery in submarine optical communication systems using power feed converters
US10777336B1 (en) * 2019-04-12 2020-09-15 Subcom, Llc Branching unit for power distribution
CN111404142B (en) * 2020-03-25 2020-11-06 中国科学院声学研究所 Voltage-stabilized constant-current underwater power supply with self-matched power and power supply method thereof
US11945561B2 (en) * 2020-06-23 2024-04-02 Subcom, Llc Efficient undersea charging of undersea autonomous vehicles

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2239063B1 (en) * 1973-07-27 1977-09-16 Thomson Csf
JPS55152434A (en) * 1979-05-17 1980-11-27 Kokusai Denshin Denwa Co Ltd <Kdd> Light output monitoring system for light repeater
JPS5758420A (en) * 1980-09-25 1982-04-08 Nec Corp Power feeding system for submarine cable system
JPS5799042A (en) * 1980-12-11 1982-06-19 Nec Corp Submarine relay system
JPS5836033A (en) * 1981-08-26 1983-03-02 Nec Corp Multistation submarine cable communication system
GB2147178B (en) * 1983-09-22 1987-02-18 Stc Plc Power feeding submarine telecommunications systems
JPS60249444A (en) * 1984-05-25 1985-12-10 Fujitsu Ltd Optical communication device
JPS61252725A (en) * 1985-05-01 1986-11-10 Nec Corp Optical submarine repeater
JPS62123842A (en) * 1985-11-25 1987-06-05 Fujitsu Ltd Optical communication equipment
JPS6398231A (en) * 1986-10-14 1988-04-28 Nec Corp Repeater for optical repeating on bottom of sea
DE68910851T2 (en) * 1988-03-04 1994-05-05 British Telecomm Amplification of optical signals.
IT1231379B (en) * 1989-07-21 1991-12-02 Pirelli Cavi Spa FIBER OPTIC TELECOMMUNICATIONS LINE INCORPORATING TRANSMITTED SIGNAL AMPLIFIERS AND AMPLIFIERS FOR THAT LINE

Also Published As

Publication number Publication date
EP0491378B1 (en) 1998-11-11
DE69130476D1 (en) 1998-12-17
CA2057657C (en) 1999-01-05
US5719693A (en) 1998-02-17
JPH04217123A (en) 1992-08-07
EP0491378A3 (en) 1993-02-10
EP0491378A2 (en) 1992-06-24

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed
MKLA Lapsed

Effective date: 20011213